Total Antenna Resistance Calculator

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Antenna Theory Parameters

Special Antennas

Wave Propagation

✖Ohmic resistance is the material's opposition to the flow of electric current.ⓘ Ohmic Resistance [R_ohm]			+10% -10%
✖Radiation resistance is an effective resistance, due to the power carried away from the antenna as radio waves.ⓘ Radiation Resistance [R_rad]			+10% -10%

✖Total Antenna Resistance is defined as the electrical resistance of an antenna is composed of its ohmic resistance plus its radiation resistance.ⓘ Total Antenna Resistance [R_t]

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Formula

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Total Antenna Resistance

Formula

`"R"_{"t"} = "R"_{"ohm"}+"R"_{"rad"}`

Example

`"4.75Ω"="2.5Ω"+"2.25Ω"`

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Total Antenna Resistance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Total Antenna Resistance = Ohmic Resistance+Radiation Resistance
R_t = R_ohm+R_rad
This formula uses 3 Variables

Variables Used

Total Antenna Resistance - (Measured in Ohm) - Total Antenna Resistance is defined as the electrical resistance of an antenna is composed of its ohmic resistance plus its radiation resistance.
Ohmic Resistance - (Measured in Ohm) - Ohmic resistance is the material's opposition to the flow of electric current.
Radiation Resistance - (Measured in Ohm) - Radiation resistance is an effective resistance, due to the power carried away from the antenna as radio waves.

STEP 1: Convert Input(s) to Base Unit

Ohmic Resistance: 2.5 Ohm --> 2.5 Ohm No Conversion Required
Radiation Resistance: 2.25 Ohm --> 2.25 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_t = R_ohm+R_rad --> 2.5+2.25

Evaluating ... ...

R_t = 4.75

STEP 3: Convert Result to Output's Unit

4.75 Ohm --> No Conversion Required

FINAL ANSWER

4.75 Ohm <-- Total Antenna Resistance

(Calculation completed in 00.004 seconds)

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Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

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< 24 Antenna Theory Parameters Calculators

Distance between Transmitting and Receiving Point

Go Transmitter Receiver Distance = (Antenna Current*120*pi*Height of Transmitter*Height of Receiver)/(Strength of Ground Wave Propagation*Wavelength)

Height of Transmitting Antenna

Go Height of Transmitter = (Strength of Ground Wave Propagation*Wavelength*Transmitter Receiver Distance)/(120*pi*Antenna Current*Height of Receiver)

Height of Receiving Antenna

Go Height of Receiver = (Strength of Ground Wave Propagation*Wavelength*Transmitter Receiver Distance)/(120*pi*Height of Transmitter*Antenna Current)

Strength of Ground Wave

Go Strength of Ground Wave Propagation = (120*pi*Height of Transmitter*Height of Receiver*Antenna Current)/(Wavelength*Transmitter Receiver Distance)

Antenna Current

Go Antenna Current = (Strength of Ground Wave Propagation*Wavelength*Transmitter Receiver Distance)/(120*pi*Height of Transmitter*Height of Receiver)

Friis Formula

Go Power at Receiving Antenna = Transmitting Power*Gain of Receiving Antenna*Gain of Transmitting Antenna*Wavelength^2/(4*3.14*Transmitter Receiver Distance)^2

Power Density of Antenna

Go Power Density of Antenna = (Total Input Power*Antenna Gain)/(4*pi*Transmitter Receiver Distance)

Effective Area of Antenna

Go Effective Area Antenna = (Thermal Resistance*Incremental Temperature)/Power Density of Antenna

Noise Temperature of Antenna

Go Antenna Temperature = (Power Density of Antenna)/(Thermal Resistance*Bandwidth)

Total Power of Antenna

Go Total Power of Antenna = Thermal Resistance*Antenna Temperature*Bandwidth

Radiation Intensity

Go Radiation Intensity = Isotropic Radiation Intensity*Directivity of Antenna

Average Radiation Intensity

Go Average Radiation Intensity = Radiation Intensity/Directivity of Antenna

Directivity of Antenna

Go Directivity of Antenna = Radiation Intensity/Average Radiation Intensity

Power Per Unit Bandwidth

Go Power per Unit = Thermal Resistance*Resistor Absolute Temperature

Total Antenna Resistance

Go Total Antenna Resistance = Ohmic Resistance+Radiation Resistance

Radiation Resistance

Go Radiation Resistance = Total Antenna Resistance-Ohmic Resistance

Ohmic Resistance

Go Ohmic Resistance = Total Antenna Resistance-Radiation Resistance

Antenna Gain

Go Antenna Gain = Radiation Intensity/Isotropic Radiation Intensity

Length of Binomial Array

Go Length of Binomial Array = (No of Element-1)*Wavelength/2

Isotropic Radiation Intensity

Go Isotropic Radiation Intensity = Radiated Power/(4*pi)

Antenna Efficiency

Go Antenna Efficiency = Radiated Power/Total Input Power

Total Input Power

Go Total Input Power = Radiated Power/Antenna Efficiency

Duct Height

Go Duct Height = (Maximum Duct Wavelength/0.014)^(2/3)

Maximum Duct Wavelength

Go Maximum Duct Wavelength = 0.014*Duct Height^(3/2)

Total Antenna Resistance Formula

Total Antenna Resistance = Ohmic Resistance+Radiation Resistance
R_t = R_ohm+R_rad

What is input resistance of antenna?

The input impedance of antenna is basically the impedance offered by the antenna at its terminals. It is defined as the ratio of voltage to the current across the two input terminals of the antenna.

How to Calculate Total Antenna Resistance?

Total Antenna Resistance calculator uses Total Antenna Resistance = Ohmic Resistance+Radiation Resistance to calculate the Total Antenna Resistance, The Total Antenna Resistance formula is defined as the electrical resistance of an antenna is composed of its ohmic resistance plus its radiation resistance. The energy lost due to radiation resistance is the energy that is converted to electromagnetic radiation. Total Antenna Resistance is denoted by R_t symbol.

How to calculate Total Antenna Resistance using this online calculator? To use this online calculator for Total Antenna Resistance, enter Ohmic Resistance (R_ohm) & Radiation Resistance (R_rad) and hit the calculate button. Here is how the Total Antenna Resistance calculation can be explained with given input values -> 4.75 = 2.5+2.25.

FAQ

What is Total Antenna Resistance?

The Total Antenna Resistance formula is defined as the electrical resistance of an antenna is composed of its ohmic resistance plus its radiation resistance. The energy lost due to radiation resistance is the energy that is converted to electromagnetic radiation and is represented as R_t = R_ohm+R_rad or Total Antenna Resistance = Ohmic Resistance+Radiation Resistance. Ohmic resistance is the material's opposition to the flow of electric current & Radiation resistance is an effective resistance, due to the power carried away from the antenna as radio waves.

How to calculate Total Antenna Resistance?

The Total Antenna Resistance formula is defined as the electrical resistance of an antenna is composed of its ohmic resistance plus its radiation resistance. The energy lost due to radiation resistance is the energy that is converted to electromagnetic radiation is calculated using Total Antenna Resistance = Ohmic Resistance+Radiation Resistance. To calculate Total Antenna Resistance, you need Ohmic Resistance (R_ohm) & Radiation Resistance (R_rad). With our tool, you need to enter the respective value for Ohmic Resistance & Radiation Resistance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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